KFC-PS3017W

PS-series 30cm subwoofer

This 30cm Subwoofer has a robust thermal management system, implemented with an Aluminum Bobbin, Closed Yoke Design, and Advanced Airflow Control. The X-Motif Cap (Injection Molded Polypropylene) controls resonance frequency and cut away unnecessary high frequency sound to deliver powerful, solid bass.

Key Features

X-Motif Cap & Diamon array cone The X-motif cap, made of Injection-Molded Polipropylene, controls resonance frequency and cut away unnecessary high frequency sound to deliver powerfull, solid bass. Diamond shapes are etched all the way to the speaker edge, helping to reduce surface waves on the speaker diaphragm, decrease vibration, and suppress distortion. The diamond array pattern also provides additional rigidity to the speaker to improve voice coil response for dynamic and clean audio reproduction.

Heat-Resistant Aluminum Voice Coil Bobbin. Most common subwoofer failure factor is Voice Coil Burnout. By using heat-resistant aluminum voice-coil bobbin with higher thermal conductivity, heat is easily transferred to the iron parts. This will Increase durability of the voice coil.

Newly-Designed Airflow Control The air is pushed by the cap, the voice-coil is cooled when air passes through the gap.

Closed Yoke Design The closed yoke realizes larger magnetic circuit to increase heat radiation, the more metal the better the heat radiation.

Computer-Optimized Spider Redesigned shape to equalize the stress to increase mechanical durability.

 

Speaker Features

Speaker Size	300mm
Oversized Dimension	Yes
Speaker Cone Design	Diamond-Array pattern
Magnet Type	Ferrit
Voice-coil	single, multi-layer voice coil
Terminals	Push Type
Spider	Stress controlled spider
Bottom-Yoke	Fully closed bottom yoke
Heat dissipation technology	Airflow control
Installation Capabillity	Sealed / Ported

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Speaker/woofer Specifications

Peak Input Power	2000W
Rated Input Power	400W
Woofer Cone material	Polypropylene (PP) Cone
Center Cap Type	x-motif cap
Speaker Basket	Steel
Speaker Surround	Foam
Spider Type	Stress controlled Spider
Sensitivity	85dB/W/m
Frequency Response	29Hz ~ 300Hz
Speaker Impedance	4Ω
Dimensions (W x H x D)	326 x 326 x 155.4mm
Mounting Depth	137mm
Mouting Hole Diameter Ø	280mm
Speaker Weight	4200gr

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Subwoofer Parameters

Nominal impedance (Z)	4Ω
DC resistance (Re)	3.7Ω
Resonant frequency (FSO)	24.4Hz
Mechanical Q factor (QMS)	6.79
Electrical Q factor (QES)	0.52
Total Q factor (QTS)	0.483
Voice coil inductance (LBM)	2.04mH
Voice coil diameter (d)	50mm
Force factor (BL)	12.9T/m
Peak excursion Xmax	5.9mm
Moving mass (MMS)	152gr.
Volume accoustic compliance (VAS)	104liter
Piston Area (SD)	0.0512m²
Displacement	1.2cc
Sealed box volume	35.4liter
Sealed Box Dimensions	457 x 362 x 299mm ( 18mm thick MDF)(WxHxD)
Vented box volume	42.5liter
Vented Box Dimensions	590 x 362 x 394mm ( 18mm thick MDF)(WxHxD)
Port dimensions (labyrinth) (W x H x L)	35 x 324 x 736mm